Machine-stand



D. H. CHASON.

MACHINE STAND. APPLICATION FILED MAR. 12, 1918.

Patented Jan. 4, 1921.

2 SHEETS-SHEET I.

ATTORNEY n. H. CH'ASON. MACHiNE STAND. APPLICATION FILED MAR-12, 1918.

INVENTOR ATTORNEY UNITED STATES PATENT OFFICE.

DANIEL H. CHASON, OF ELIZABETH, NEW' JERSEY, ASSIGN'OR TO THE SINGER MANU- FACTURING COMPANY, A CORPORATION OF NEW JERSEY.

MACHINE-STAND.

Specification of Letters Patent.

Patented Jan. 4, 1921.

Application filed March 12, 1918. Serial No. 221,880.

T 0 all whom 1'15 may 007166771.

Be it known that I, DANIEL H. CHASON, a citizen of the United States, residing at Elizabeth, in the county of Union and State of New Jersey, have invented certain new and useful Improvements in Machine- Stands, of which the following is a specification, reference being had therein to the accompanying drawings.

This invention relates to machine stands and more particularly to treadle-stands for sewing or other small foot-power driven ma: chines and has for an object to provide a practical machine stand in which the use of cast iron has been largely eliminated and which will be neat and trim in appearance, light in weight and of strong, rigid and durable construction.

In attaining these ends, the stand is formed with a pair of similar table-top supporting sections which are constructed of interlocked thin sheet-metal parts of channel-formation suitably reinforced to produce a very light and strong structure.

Each of the supporting sections comprises vertical legs, preferably two in number, which are constructed of sheet-metal channel-members assembled in interlocking relation about a reinforcing or fillerbar of light material such as hard wood. The lower end of each. vertical leg is snugly fitted into a corresponding upwardly opening socket of an arched foot-piece or base member preferably of tubular sheet-metal construction and preferably curved outwardly and downwardly; the lower extremity of each foot-piece being slightly flared to form a socket for the reception of a caster.

The legs of a given supporting section are connected or braced at their lower ends by a suitable crossbar which in the present instance is formed integral with the footpieces. In other words, it is preferred to form the feet and cross-bars of each supporting section of two sheet-metal halves of channel-formation joined at their edges to form a tubular construction ofrectane'ular cross-section. affording connected foot-pieces having upwardly opening sockets adapted to receive the supporting legs, and downwardly opening sockets for reception of the casters.

The cross-bars of the supporting sections are connected by and carry a longitudinally extending bar formed of sheet-metal of inverted U-section fitted with fixed pivot pins adapted to enter the socketed ends of complemental pins adjustably secured to a treadle-plate.

The belt-wheel is carried by a crank-shaft journaled in a bracket formed of bent channel-iron and bolted to one of the righthand supporting sections; there being a bracemember extending between the bracket and the horizontal crossbar of said supporting section. The usual pitman connection disclosed in the patent to Diehl at (111., No. 997,376, of July 11, 1911, is utilized to transmit power from the treadle to the belt-w'heel. A back brace of pressed sheet-metal steadies the stand against endwise racking movements.

In the accompanying drawings, Figure 1 is a perspective view of the improved treadle-stand. Fig. 2 is a vertical longitudinal section. Fig. 3 is a perspective view illustrating the details of construction of the supporting sections. Fig. 4 is a horizontal section at the line 4., Fig. 3. Fig. 5 is a vertical section at the line 5, Fig. 3. Fig. 6 is a horizontal section through one of the legs. Fig. 7 is a detail perspective view of the lower end of one of the foot pieces. Fig. 8 is a vertical section through the same showing the position of the caster. Fig. 9 is a perspective view of the caster and Fig. 10 is a perspective view of one of: the sheet-metal flange pieces used for connecting the supporting sections to the tableto .liccording to the present invention, the stand includes a pair of similar table-top supporting sections A, B, each of whlch comprises a pair of vertical legs 1 constructed of sheet-metal channel-members 2, 3, Figs. 3, 4 and 6, assembled in interlocking relation about a reinforcing or filler-bar 4: of some light, strong material, such as hard wood. The outer channel-member 2 is formed at the juncture of its side and bottom faces with outwardly projecting rounded beads 5 to receive the free edges of the side walls of the inner channel-member 3; the latter member being formed with less pronounced outwardly projecting heads 6 about 7 which the free edges of the side members of the outer channel-members 2 are crimped, as at 8.

The lower end of each of the leg-members 1 is received within a corresponding socket 9 of a foot-piece 10 of tubular sheet-metal construction curved outwardly and downwardly and slightly flared at its lower extremity which forms a downwardly opening socket adapted to receive a caster 12 and clear the wheel thereof.

The casters 12 each preferably comprise a U-shaped strap 13 whose free ends are connected by a pin 13 upon which the roller 14 is journaled. The width and distance between the legs of the Ll-shaped strap 13 are such that the strap fits snugly within the rectangular socket afforded by the hollow lower extremity of the corresponding foot piece 10.- Theextremities of the strap are notched and bentoutwardly to form spaced lips 15 which are seated within notches 16,

Fig. 8, cut in the lower extremity of the foot-piece 10.

The legs of a given supporting section are connected or braced at their lower ends by a cross-bar 17 which is preferably formed integralwith the foot-pieces 10, 10, of said section. As represented in Figs. 1 and 3, the feet 10 and crossbar 17 are formed of two similar sheet-metal halves or channeled sections connected along a median line; the free edges 18 of one being preferably bent or crimped about the outwardly bent free edges 19 of the other (Fig. The connected channel sections constitute a tubular construction of rectangular cross-section affording connected foot-pieces having upwardly opening sockets 9 for reception of the leg-members 1, and downwardly opening sockets 11 for reception of the casters 12.

In order to fixedly secure the leg-members 1 within the sockets 9, use is made of a pair of headed half-rivets 20, the shanks of which i are abutted within the alined apertures 21, 22 in the foot-pieces and leg-members, resne:tively, and are electrically butt-welded in assembled relation. Secured. to the top of each leg-member 1 is a corresponding sheet-metal flange-piece 23 having downwardly bent ears 24 of a width corresponding to the distance between the heads 5, 5 and 6, 6 of the casing for the leg-members, and lateral lips 25 through which screws may be passed into the table-top t.

The cross-bars 17 of the supporting sections A, B carry a sheet-metal support 26 for the treadle-plate 27. Riveted within suitable apertures in the support 26 are conical pivot pins 28, the points of which enter complemental cavities in the outer ends of the pins 29 adjustably fixed by screws 30 within sockets 31 in the treadle-plate The extremities of the support 26 are bifurcated and bent upwardly to form lips 32 through cross-bars 17 when the screw-bolts 33 are tightened.

The supporting bracket for the fly-wheel 35 preferably comprises a straight bar 35' of channehformation bolted at its opposite ends to the leg 1 of supporting section B. Butt-welded to the straight bar 35 at 36, 36 are the extremities of a bent channel-bar 37 which extends diametrically of the fly-wheel 35 and partially surrounds the latter, as shown in Fig. l, forming a support for the circular dress-guard 38. Riveted to the central portion of the bar 37 and serving to se cure the upper end of the bracebar 39 is a conical pivot pin 40 which enters one cupped extremity of the fly-wheel supporting crankshaft 41, the opposite cupped extremity of which is entered by a conical ended screwpin 42 adjustably secured to the straight bar 35. The brace-bar 39 is bent under and secured to the dress-guard 38 at 43 and at its lower end is bolted to the cross-bar 17 at a point between the screw-bolts 33 for the treadle-plate supporting bar 26. The treadle-plate 27 is formed with an extension 44 having ball-and-socket connection with the usual pitman rod 45 which depends from the crankshaft 41.

Although the invention has been described in detail, in its preferred embodiment, it is to be understood that the construction is susceptible of material'modification, both in the form and arrangement of the various parts, without departure from the invention.

aving thus set forth the nature of the invention, what I claim herein is l 1. A- machine stand constructedwith a table-top and two side supporting sections each comprising an inverted U-shaped footmember made of a pair of sheet metal elements of channel formation joined to form a structure substantially rectangular in cross section and provided with upwardly extended portions integral therewith afiording upwardly opening sockets and apair of uprights inserted in said sockets, a drivewheel frame connected to the uprights of one of said side sections, a back brace extending between said side sections, and a treadleplate support connecting said foot-members.

2. A machine stand constructed with two side sections each comprising a pair of uprights and a hollow sheet-metal foot-piece socketed to receive said uprights, the footpiece formed of a pair of integral inverted U-shaped channel members joined to form a tubular stucture, a treadle-plate support connecting said foot-pieces, and a back brace connecting said side sections.

formation and joined to form a hollow crossbar having integral upwardly and downwardly extending portions forming open sockets at its opposite ends, a pair of up rights having their lower ends fitted into said upwardly opening sockets, and a pair of casters inserted in said downwardly opening sockets.

i. A side section for a machine stand comprising an arched sheet-metal foot-piece having upwardly directed sockets, sheetmetal legs fitted to said sockets. and a combined drive wheel hanger and brace secured to said legs and to said foot-piece.

5. A treadle-stand comprising a table-top and supporting sections including spaced leg-members and lower cross-bars connecting said leg-members, a frame including a second cross-bar further connecting the legmembers of one of said supporting sections and another bar spaced therefrom, and a drive-wheel journaled in said frame between the spaced bars thereof.

6. A treadle-stand comprising a table-top and supporting sections including spaced leg-members and lower cross-bars connecting said leg-members, a frame including a second cross-bar further connecting the legmembers of one of said supporting sections, a drive-wheel journaled in said frame, a brace connecting said frame to said lower cross-bar, and a belt-guard secured to said frame and brace.

7. A treadle-stand comprising a table-top and two supporting sections each including spaced leg-members and a lower cross-bar connecting said leg-members, a treadle-plate supporting bar carried by the cross-bars of said supporting sections comprising a sheetmetal channel member, a pair of pivots secured to the web of said treadle-plate supporting bar, a treadle-plate, and a pair of socketed members entered by said pivot pins and secured to said treadle-plate, one of said socketed members being adjustable.

8. A treadle-stand comprising a table-top and two supporting sections each including spaced leg-members and a lower cross'bar connecting said leg-members all formed of connected sheet-metal channel-members, a treadle-plate supporting bar carried by the cross-bars of said supporting sections comprising a sheet-metal channel-member, a treadle-plate, and means for pivotally mounting the treadle-plate on said supporting bar.

9. A side section for a machine stand constructed with a foot-member comprising sheet-metal sections pressed into channel formation and joined to form a hollow crossbar having integral upwardly and downwardly extending portions, a pair of uprights having socket connections at their lower ends with said upwardly extending portions and a pair of casters having socket connections with said downwardly extending portions.

In testimony whereof, I have signed my name to this specification.

DANIEL H. CHASON.

Corrections in Letters Patent No. 1,364,350.

It is hereby certified that in Letters Patent No. 1,364,350, granted January 4, 1921, upon the application of Daniel H. Ghason, of Elizabeth, New Jersey, for an improvement in Machine-Stands, errors appear in the printed specification requiring oorreotion as follows: Page 2, line 23, for Fig. 8 read Fig. '7; page 3, line 29, claim 6, after the word sections insert the Words and (mother bar spaced therefrom; same page and claim, line 30, after the word frame insert the Words between the spaced bars thereof; and that the said Letters Patent should be read with these corrections therein that the same may conform to the record of the case in the Patent Ofiioe.

Signed and sealed this 1st day of February, A. D., 1921.

[SEAL] L. B. MANN,

Act mg Commissioner of Patents. 

